Hi all I used to scuba dive but no longer can as such I have a 15 litre, 12 litre, 9 litre, and 3 litre cylinders, my question is
Are they easy to convert to air gunner use as currently they have dive valves on,
And how much are they worth ? Bearing in mind they haven't been used for a few years they are out of test, would it be better to get them tested and then sold or sell 'as is'
Many thanks